Abrasive applying machine



Oct.

F. J. HORTON ET AL 1,881,590

ABRAS IVE APPLYING MACHINE File J ly 9, 19:50 a Sheets-Sheet 1 gwuento'c dim;

Oct. 11, 1932. F; J. HORTON ET AL ABRASIVE APPLYING MACHINE Filed July 9. 1930- 5 Sheets-Sheet 2 H. mm j 3 viva VW, WW

Oct. 11, 1932. F. J. HORTON ET AL ABRASIVE APPLYING MACHINE Filed July 9, 1930 3 Sheets-Sheet 5 Patented Oct. 11, 1932 irumrrn gismrtzrs v-ifPf-ATENT aorricr FRANK a1 HORTON 'AND"RIGHARD w. LEWIS, toF-DETROlT MICl-liGAN, ASSIGNORS-JTO (GENERAL SPRING-return CORPORATION", or nnrnorr, MICHIGAN, A" CORPORA- TION OEM'ICHIGLAN ABRASIVE APPLYING MACHINE 'grApplication filed Ju1y 9,-1930.-wSeria1 N0. 4 66,720.

, This invention relatesto, improvements in machines for, applying "emery or other abravfive to glue-coated grinding avheels -In prace;

tice, the ,wheelsyare- .coveredaon their. peripheries with a specially. preparedglue, .aiiter. which they arelplaced in the {machine which is so construct edas to pound the gluetcoated periphery into a receptaclecontainingthe i heated. abrasi:ve,= such gas emery, or, the ilike.

. ,Thevprincipal object oftherinvention is to "provide such amachine which shall beex- :tremely simple in construction,occupying a 1 minimum of. shop space and be very effluent and long-lived. Other and, more specific ob jects will become apparent as the description- Hproceeds, Fig. 1 is a side elevation showingonejof the wheels inpositionfFig. 2 is avertica-lcsectionalview taken at right angles to the view of l ig. 1; Fig.3 is a horizontal, section, corresponding substantially to. the line 3-3 'of I Fig. 1; and Fig; 4 isa fragmentary section showing the means for adjustingtheposition ofthe powerunit. V a

As: shovv'ninj the drawings,' the machine 1s {mounted on aframeworklO which comprises an upper bedportion and suitablesupporting legs. iMountedton top,'oflithisdrameworli is a a, channel-shaped steainj acket- 11 provided with suitable steam pipes 12 a and adapted to serve the doubleiunctiongof supporting a receptacle '13and, maintaining the abrasive material 14 at the proper temperature."' J ourna-led' on the underside of the framework bed ,its ends withopenings for the reception of Wheel supporting rods' 17.f In'addition to passing through the openings in the shaft 16, the rods'l'? passthrough openings; 18, injthe in bearings 15 is a guide shaft 16 provided at framework bed and are provided with shields 19 adapted to prevent abrasive material or dirt from entering the working parts to cause the grinding wheell22 to'be coated. A power-- 1 unit is provided for impartinggthe working I motion to' the rods 17 'and'includesja plat- .undue wear thereof. At the upper endsof the rods 17 are suitable bifurcated members QOadapted to receive an arborQl to support.

form 23' pivotally mounted betweentwo of the legs of the frameworl'z '10 by, means of a tar-2,4 passing through the rear' edge of such platform and journaled in suitable bosses 25 ,onthje framework. As best seenin' Fig. 3, the "other end of the platform *23 is supported by bifurcated portion 26 integral with an up Standing-Web itperating with trun nions 28 on a tapped'block 29 supported at any desired height on a screw Q journaled in tliejframeworkin a boss31 and aweb 32 both integral with the framework. I V Journaled between two extensions 33 and 3d of the-platform 23 is a crank shaft35 having mounted centrally thereof cranksST.

The lower end of each rod'17 is pivotallyconnected to a corresponding crank '37 by means of acr'ank pin 38. A belt 39 serves to connect the motor 40 with the pulley 36 for driving the crank shaft 35. to produce a rollingand pounding movement of/the wheel 22.

,From the foregoing, it is obvious that we have provided a simple abrasive applying machine, that the abrasive to be applied can easily be kept at the proper temperature-by the steam jackets,that'the wheel, to be coated is given a desirable rolling andpounding action, and that the. position'of'ithe pe- 'riphery of the wheel can be'adjusted, with *vention in numerous forms within, the scope of the appended claims.

Having thus described our invent-ion, what we claim is:

1;: A machine for-applying abrasive to a grinding-wheel, said machine including means for supporting a massrofiabrasivetma- @terlal, and means, for; supporting .said whee tvlthvrespect to; said massand imparting tthereto such amotion thatzthe ;periph eryof,

, said Wheel islpounded into-such-mass, said lastlmeans ncluding a shaft normally fixed a with-respect to saidmass, a: cranlcarm on said sha t, a: barnfor carrying s'aid wheel and being pivoted on said crank arm, guide means:

through which said bar passes, andjmeans for rotating said shaft. 7 Y 2. A machine for applying abrasive to a grinding Wheel, said machine including 1 thereto such amotion that the periphery of saidwheel is pounded into such mass, said means for supporting a mass of abrasive material, and means for supportmg sa1d wheel with respect to said mass and lmparting last means beingsubstantially entirely below the surface of said mass.

3. A machine for applying abrasive to a grinding wheel, said machine including 1 means for supporting a mass of abrasive material, and means for supporting said i wheel with respect to said mass and lmparting thereto such a motion that the periphery- I of saidwheel is pounded into such mass, the

ing said abrasive material.

means forsupporting the abrasive material being. provided with hollow walls whereby steam may be circulated thereabout for heat- 4. A machine for applying abrasive to grinding wheel, said machine including means for supporting a mass of'abrasive material, and, means for supportlng said wheel with respect tosaid mass and imparting thereto such a motion that the periphery of said wheel is pounded into such mass,

said means for supporting the abrasive material including heating mechanism for keeping the same at proper temperature;

5. In an abrasive applyingmachine, a supporting framework,ran abrasive holding receptacle mountedthereon, a crank shaft rotatably carried by. saidframework on supporting means; means mounted on'said sup- 'iorting means forrotatingsaid crank shaft,

f rod pivoted on a crank on saidcrank shaft i and having means'thereon for supporting a 1 wheel to becoated, and'a guide in which said an reciprocates. 7

6. In an abrasive applying machine, a supporting framework, an'abrasive holding receptaclemounted thereon, a crank shaft ro-. tatably carried by said framework on supporting means, means for rotating said crank,

, shaft,'.a rod pivoted on a crank on said crank shaft andhaVing means thereon for supv ,porting awheel to be coated and a guide jourynalled in said framework and constraining motion of said rod.- I I 7. In an abrasive applying machine, a supporting framework, an abrasive holding receptacle mountedthereon, a crank shaft ro- V tatably .carried'by said framework on supporting means, means for rotating saidcrank shaft-,a rod pivoted on a crank on said crank shaft and having means thereon for supportfing a wheel to be coated, a guide carried by said framework and constraining motion of said rod, said supporting meansbeing piv-f oted'to said framework and adjustableabout the pivot point tofcompensate for changes in ing a wheel to becoated, a guidecarried by said framework and constraining motion of "said rod, said guide including a shaft journaled in said framework and having an opening transversely therethrough receiving said rod. r

9. In an abrasive applying machine, a supporting'framework, an abrasive holding receptacle mounted thereon, a crank shaft'rotatably carried by said framework on supporting means, means for rotating said crank shaft, a rod Ipivoted on a crank on'said crank shaft and having means thereon for supportmg a wheel to be coated, a guide carried by said framework andconstrainmg motion of said rod, said guide including a shaft jour- K naled in said framework and having an openng transversely therethrough receiving said rod, and a shield on said rod and covering said opening to exclude foreign material.

10. In an abrasive applying machine, a framework, a channel shaped steam jacket mounted on said framework andadapted to receive thereina' receptacle of abrasive ma terial, and mechanism carried by said frame for supporting a'wheel and pounding it into the mass of abrasive material in said receptacle. I r

11. In amachine for applying abrasive to a glue-coated grinding wheel, a supporting framework,'means for supporting'a mass of abrasive material in fixed relation to said framework, a guideon said fra1n-e'work,rods passing through said guidefor carrying the wheel to be coated, and apower unit including a motorand a crankshaft carried by said frameworkand supporting said rods. 7

12. In, a machine for applying abrasive to a" glue-coated grinding wheel, a supporting framework, means forlsupporting a mass of abrasive material infixed relation to said framewo'rk, a guide on said framework, rods passing through saidguide for carrying the wheel to be coated,'andfa' power unit includ ing a platform adjustably and'pivotally carried by said framework,fland a motor and" crank shaftrotatably carried-on said platform; and connected to said rods. j l

13. In a machine for applying a a glue-coated grinding wheel, a supporting framework, means forsupporting a mass of abrasive material infixed relation to said framework, a guide on said framework, rods passing through said guide for carrying'the brasive to wheel to be coated, and apower unit including a platform adjustably and pi'votally carried by said framework, and a motor and crank shaft rotatably carried on said platform and connected to said rods, said crank shaft carrying a pulley and said pulley being connected to said motor.

14:. A machine for applying abrasive to a grinding element, said machine including means for supporting a mass of abrasive material, and means for floatingly supporting a grinding element in juxtaposed relation to the abrasive material and imparting to the element such a motion that the periphery of said element is pounded into said material by gravity.

15. In an abrasive applying machine, means for supporting a mass of abrasive material, means for supporting a grinding element, to which said material is to be applied, in juxtaposed relation to said material, the second means including instrumentalities for guiding the element for :tree upward movement relative thereto, and mechanism for imparting an up and down motion to the second means whereby the element is alternately raised and allowed to descend by gravity into contact with said material.

16. In an I abrasive applying machine, means for supporting a mass of abrasive material, means for supporting a'grinding element, to which said material is to be applied,

injuxtaposed relation to said material, the

second, means including instrumentalities for guiding the wheel for free upward movement relative thereto, and mechanism for imparting a combined rotary and up and down I motion to said means whereby the element is alternately raised and allowed to descend b gravity into contact with said material, wit

rolling action.

In testimony whereof, we'hereunto afiix our signatures.

FRANK J. HORTQN. RICHARD W. LEWIS. 

